working principle of the fan clutch explained

[shogun]

with cross section drawings (tech info from VW from 1985) and cut-off pics
http://www.bimmerboard.com/forums/posts/569417

[Claude]

with cross section drawings (tech info from VW from 1985) and cut-off pics
http://www.bimmerboard.com/forums/posts/569417

Real nice picture that help understand operation principal... to bad that it's in german language.... use of translator site help also a bit.

Thanks Shogun, appreciated.